外研版（2019）选择性必修第二册Unit 5 A delicate World Understanding ideas 课件(共29张PPT)
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| 名称 | 外研版（2019）选择性必修第二册Unit 5 A delicate World Understanding ideas 课件(共29张PPT) |  | |
| 格式 | pptx | ||
| 文件大小 | 11.8MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 外研版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2024-05-20 17:04:37 | ||
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(共29张PPT)
Unit 5 A Delicate World
Macquarie Island:
from chaos to conservation
Animals in the pictures
birds
penguins
What is the relationship between the animals and the island
They are native inhabitants or they are native to the island.
MACQUARIE ISLAND:
from Chaos to Conservation
/'ke s/ n.混乱；紊乱
a state of complete confusion and lack of order
/k ns 've n/ n.
the protection of the natural environment
（对自然环境的）保护
Predict: what happened to the island
Read and match the main idea with its corresponding paragraph.
A. The rabbit problem resulted in parakeets' dying out.
B. The rat, mouse and rabbit problem made people realise that problems should be solved once and for all.
C. I participated in a programme to tackle this very problem.
D. Native inhabitants on Macquarie Island were once in perfect harmony with their natural habitat.
E. People released a virus to kill rabbits and used traps and dogs to catch the cats.
F. Rats and mice brought to the island caused harm.
ADD YOUR TITLE HERE
Read para. 1 and find out some information about Macquarie Island
Location
Shape
Landscape
Title
Inhabitants
in the ____________Pacific Ocean between ________
_______ and _______ shape caused by _______ wind and ___________
___________ and ________ contrast ___________
________ and _______ penguins, _________
and _________
Australia
Antarctica
Pacific Ocean
South-west
Australia
Antarctica
ADD YOUR TITLE HERE
Some information about Macquarie Island(麦夸里岛)
Location
Shape
Landscape
Title
Inhabitants
in the ____________Pacific Ocean between ________
_______ and _______ shape caused by _______ wind and ___________
___________ and ________ contrast ___________, giving it a _________ and ________ beauty
________ and _______ penguins, _________
and _________
South-west
Australia
Antarctica
long
thin
strong
stormy seas
ADD YOUR TITLE HERE
Some information about Macquarie Island(麦夸里岛)
Location
Shape
Landscape
Title
Inhabitants
in the ____________Pacific Ocean between ________
_______ and _______ shape caused by _______ wind and ___________
___________ and ________ contrast ___________ giving it a _________ and ________ beauty
________ and _______ penguins, _________
and _________
South-west
Australia
Antarctica
long
thin
strong
stormy seas
green grass
bare rock
dramatically
UNESCO World Heritage Site
royal
king
elephant seals
wild
natural
native inhabitants existed in perfect harmony
Then,what happened to the island
But...
Did it remain this hamonious and peaceful scene all the time
1810
1891
1970s
1980s
2000
2006
What did humans do
Why did they do it
How did it end
2014
actions
purposes
results
Read para 2
Macquarie Island
arrived
brought unknowingly
took over
ate birds' eggs
attacked baby birds
developed an appetite for the birds
were brought to control
1810
Read para 3 and connect the pictures
Macquarie Island
introduced
as a source of food
multiplied
ate vegetation
dug holes
provided food
the number increased
hunted birds
parakeets died out
1891
Read para 4 and draw a mind map
released a virus to remove
decreased
to 10,000
less food
killed more birds
used
to catch
The last cat was caught in 2000.
using examples and numbers to convince readers
1970s
1980s
Read para 5 and draw a mind map
increased
developed an immunity
exploded again
dug holes
Macquarie Island
land collapsed
a substantial number of penguins were killed
While the cat’s away, the mice will play.
2006
Read para 6
How do they solve the problem
1. The first step involved poison being dropped from helicopters.
2. The next step is to remove the last remaining invading species by using the trained dogs.
2014
“This intervention is a long, much-delayed ending to a sad story, but we humans owe it to the island to give it a happy ending.”
1810
1891
1970s
1980s
2000
2006
chaos
conservation
2014
204 years
Who are the invading species
It is _________ that have damaged the __________ of the Macquarie island and it is humans’ _________ to help it return to ________.
humans
ecosystem
duty
normal
(Whoever started the trouble should end it!)
解铃还须系铃人
Organise information from the passage and complete the flow chart.
eating the birds’ eggs and attacking baby birds
they took over the island,
Cats were brought to the island.
in 1810
The cats developed an appetite for the birds.
Rabbits were introduced to the island.
To provide food for humans.
more rabbits meant more cats
More cats hunted the birds and parakeets died out.
A virus was released onto the island.
Traps and dogs were used.
Poison and dogs were used.
To remove all the rabbits from the island.
To catch the cats.
To remove all the remaining invading species.
The island is pest-free and its ecology is on the road to recovery.
Substantial reduction of rabbit population led to cats killing more native birds.
The population of rats and mice increased.
in 1970s
in 1980s
in 2000
The rabbit population exploded once again.
in 1891
in 2006
Human
beauty
Summary
chaos
conservation
harmony
Humans broke the _______ of the ________
balance
ecosystem
Humans tried to _________ the _______
conserve
ecosystem
Choose the author’s purpose in writing the passage .
1. To analyse how Macquarie Island was saved from destruction.
2. To inform readers of the chaos caused on Macquarie Island by humans.
3. To entertain readers with a funny story about what happened on Macquarie
Island.
4. To suggest ways in which an ecosystem can be protected.
Think and share
What lessons do you learn
※ Avoid human intervention.
※ Think twice before action while tackling problems.
※ Raise the awareness of protecting nature.
※ Keep balanced between development and conservation.
Clear Waters and Lush Mountains are as Valuable as Gold and Sliver.
—— Xi Jinping
1. fail to do sth
2. in harmony with
3. develop an appetite for
4. be introduced to
5. soil erosion
6. out of control
未能做成某事
与……和谐
被引入……
土壤侵蚀
失控
对……产生兴趣
Language points: Important words and expressions
7. remove ... from
8. decrease from ... to
9. in consequence
10. turn out
11. a substantial number of
12. once and for all
13. every last
14. owe it to sb to do sth
Language points: Important phrases
结果；因此
原来是；结果是，证明是
大量的
每一个
(认为)应该为某人做某事
彻底地；一劳永逸地
从……移走/去除
从……减少到……
Language points: Important words and expressions
1. Nor would they fail to imagine how its native
inhabitants, including royal penguins, king penguins,
and elephant seals, existed in perfect harmony with
their natural habitat for thousands of years.
Language points: Important sentences
Paraphrase: They couldn’t help but imagine how its native inhabitants, including royal penguins, king penguins, and elephant seals, existed in complete unity with their natural habitat for thousands of years.
Language points: Important sentences
例：1) He didn’t quit his job, nor was he fired.
他没有辞职，也没有被解雇。
2) They couldn’t understand it at the time, and nor could we.
他们那时无法理解这件事，我们也理解不了。
具有否定意义的副词放在句首时，句子要用部分倒装结构。
本句中nor 为否定词，它所引导的句子要用倒装语序，常见结构为：Nor + 助动词 / be 动词 / 情态动词 + 主语 + 谓语 + 其它成分
2. Unfortunately, the cats subsequently developed an
appetite for the birds, too.
Language points: Important sentences
Paraphrase: Unfortunately, the cats subsequently began to eat the birds, too.
develop an appetite for ...
develop a taste for ... 对……产生兴趣
develop an interest in ...
develop a close friendship with ... 与……产生亲密的友谊
develop the habit of ... 养成……的习惯
develop (an) immunity to ... 对……产生免疫力
3. Loose on the island, they did what rabbits do best – they multiplied rapidly and began eating the native vegetation and digging holes, which caused soil erosion.
Language points: Important sentences
Paraphrase: Rabbits were free on the island and they did what rabbits do best – they increased their numbers rapidly and began eating the local plants, flowers, etc and digging holes, which caused soil erosion.
Language points: Important sentences
1）We reached the top of the mountain. We were tired and hungry.
形容词（短语）作状语的用法：其逻辑主语为句子的主语，是由主语相同的两个句子改写而成的。
= We reached the top of the mountain, tired and hungry.
我们到达山顶。感觉又累又饿。
= Satisfied with it, Jane bought the book immediately.
Jane对这本书很满意，立刻就买了下来。
2）Jane was satisfied with it. She bought the book immediately.
4. This in turn led to more cats hunting the birds.
Language points: Important sentences
Paraphrase: As a result, this led to more cats hunting the birds.
in turn 依次；轮流。还可以表示结果，相当于as a result，和下文中的 in consequence 同义。
例：1）The grape production declined greatly this year
which in turn brought a rise in its price.
今年的葡萄产量大幅度下降，因此价格上涨了。
2）He was over the age limit and in consequence, his
application was rejected.
他已超过了年龄限制，因此他的申请被拒绝了。
5.This intervention is a long, much-delayed ending to a sad story, but we humans owe it to the island to give it a happy ending.
Language points: Important sentences
Paraphrase: This intervention is an ending to a sad story which takes a long time and is delayed much, but it’s our responsibility to give the island a happy ending.
Language points: Important sentences
owe it to sb to do sth 应该为某人做某事
例：1）We owe it to the heroes to build a memorial.
我们应该为这些英雄建一座纪念碑。
2）We owe it to our children to clean up the
environment.
我们应该为孩子们治理环境。
Unit 5 A Delicate World
Macquarie Island:
from chaos to conservation
Animals in the pictures
birds
penguins
What is the relationship between the animals and the island
They are native inhabitants or they are native to the island.
MACQUARIE ISLAND:
from Chaos to Conservation
/'ke s/ n.混乱；紊乱
a state of complete confusion and lack of order
/k ns 've n/ n.
the protection of the natural environment
（对自然环境的）保护
Predict: what happened to the island
Read and match the main idea with its corresponding paragraph.
A. The rabbit problem resulted in parakeets' dying out.
B. The rat, mouse and rabbit problem made people realise that problems should be solved once and for all.
C. I participated in a programme to tackle this very problem.
D. Native inhabitants on Macquarie Island were once in perfect harmony with their natural habitat.
E. People released a virus to kill rabbits and used traps and dogs to catch the cats.
F. Rats and mice brought to the island caused harm.
ADD YOUR TITLE HERE
Read para. 1 and find out some information about Macquarie Island
Location
Shape
Landscape
Title
Inhabitants
in the ____________Pacific Ocean between ________
_______ and _______ shape caused by _______ wind and ___________
___________ and ________ contrast ___________
________ and _______ penguins, _________
and _________
Australia
Antarctica
Pacific Ocean
South-west
Australia
Antarctica
ADD YOUR TITLE HERE
Some information about Macquarie Island(麦夸里岛)
Location
Shape
Landscape
Title
Inhabitants
in the ____________Pacific Ocean between ________
_______ and _______ shape caused by _______ wind and ___________
___________ and ________ contrast ___________, giving it a _________ and ________ beauty
________ and _______ penguins, _________
and _________
South-west
Australia
Antarctica
long
thin
strong
stormy seas
ADD YOUR TITLE HERE
Some information about Macquarie Island(麦夸里岛)
Location
Shape
Landscape
Title
Inhabitants
in the ____________Pacific Ocean between ________
_______ and _______ shape caused by _______ wind and ___________
___________ and ________ contrast ___________ giving it a _________ and ________ beauty
________ and _______ penguins, _________
and _________
South-west
Australia
Antarctica
long
thin
strong
stormy seas
green grass
bare rock
dramatically
UNESCO World Heritage Site
royal
king
elephant seals
wild
natural
native inhabitants existed in perfect harmony
Then,what happened to the island
But...
Did it remain this hamonious and peaceful scene all the time
1810
1891
1970s
1980s
2000
2006
What did humans do
Why did they do it
How did it end
2014
actions
purposes
results
Read para 2
Macquarie Island
arrived
brought unknowingly
took over
ate birds' eggs
attacked baby birds
developed an appetite for the birds
were brought to control
1810
Read para 3 and connect the pictures
Macquarie Island
introduced
as a source of food
multiplied
ate vegetation
dug holes
provided food
the number increased
hunted birds
parakeets died out
1891
Read para 4 and draw a mind map
released a virus to remove
decreased
to 10,000
less food
killed more birds
used
to catch
The last cat was caught in 2000.
using examples and numbers to convince readers
1970s
1980s
Read para 5 and draw a mind map
increased
developed an immunity
exploded again
dug holes
Macquarie Island
land collapsed
a substantial number of penguins were killed
While the cat’s away, the mice will play.
2006
Read para 6
How do they solve the problem
1. The first step involved poison being dropped from helicopters.
2. The next step is to remove the last remaining invading species by using the trained dogs.
2014
“This intervention is a long, much-delayed ending to a sad story, but we humans owe it to the island to give it a happy ending.”
1810
1891
1970s
1980s
2000
2006
chaos
conservation
2014
204 years
Who are the invading species
It is _________ that have damaged the __________ of the Macquarie island and it is humans’ _________ to help it return to ________.
humans
ecosystem
duty
normal
(Whoever started the trouble should end it!)
解铃还须系铃人
Organise information from the passage and complete the flow chart.
eating the birds’ eggs and attacking baby birds
they took over the island,
Cats were brought to the island.
in 1810
The cats developed an appetite for the birds.
Rabbits were introduced to the island.
To provide food for humans.
more rabbits meant more cats
More cats hunted the birds and parakeets died out.
A virus was released onto the island.
Traps and dogs were used.
Poison and dogs were used.
To remove all the rabbits from the island.
To catch the cats.
To remove all the remaining invading species.
The island is pest-free and its ecology is on the road to recovery.
Substantial reduction of rabbit population led to cats killing more native birds.
The population of rats and mice increased.
in 1970s
in 1980s
in 2000
The rabbit population exploded once again.
in 1891
in 2006
Human
beauty
Summary
chaos
conservation
harmony
Humans broke the _______ of the ________
balance
ecosystem
Humans tried to _________ the _______
conserve
ecosystem
Choose the author’s purpose in writing the passage .
1. To analyse how Macquarie Island was saved from destruction.
2. To inform readers of the chaos caused on Macquarie Island by humans.
3. To entertain readers with a funny story about what happened on Macquarie
Island.
4. To suggest ways in which an ecosystem can be protected.
Think and share
What lessons do you learn
※ Avoid human intervention.
※ Think twice before action while tackling problems.
※ Raise the awareness of protecting nature.
※ Keep balanced between development and conservation.
Clear Waters and Lush Mountains are as Valuable as Gold and Sliver.
—— Xi Jinping
1. fail to do sth
2. in harmony with
3. develop an appetite for
4. be introduced to
5. soil erosion
6. out of control
未能做成某事
与……和谐
被引入……
土壤侵蚀
失控
对……产生兴趣
Language points: Important words and expressions
7. remove ... from
8. decrease from ... to
9. in consequence
10. turn out
11. a substantial number of
12. once and for all
13. every last
14. owe it to sb to do sth
Language points: Important phrases
结果；因此
原来是；结果是，证明是
大量的
每一个
(认为)应该为某人做某事
彻底地；一劳永逸地
从……移走/去除
从……减少到……
Language points: Important words and expressions
1. Nor would they fail to imagine how its native
inhabitants, including royal penguins, king penguins,
and elephant seals, existed in perfect harmony with
their natural habitat for thousands of years.
Language points: Important sentences
Paraphrase: They couldn’t help but imagine how its native inhabitants, including royal penguins, king penguins, and elephant seals, existed in complete unity with their natural habitat for thousands of years.
Language points: Important sentences
例：1) He didn’t quit his job, nor was he fired.
他没有辞职，也没有被解雇。
2) They couldn’t understand it at the time, and nor could we.
他们那时无法理解这件事，我们也理解不了。
具有否定意义的副词放在句首时，句子要用部分倒装结构。
本句中nor 为否定词，它所引导的句子要用倒装语序，常见结构为：Nor + 助动词 / be 动词 / 情态动词 + 主语 + 谓语 + 其它成分
2. Unfortunately, the cats subsequently developed an
appetite for the birds, too.
Language points: Important sentences
Paraphrase: Unfortunately, the cats subsequently began to eat the birds, too.
develop an appetite for ...
develop a taste for ... 对……产生兴趣
develop an interest in ...
develop a close friendship with ... 与……产生亲密的友谊
develop the habit of ... 养成……的习惯
develop (an) immunity to ... 对……产生免疫力
3. Loose on the island, they did what rabbits do best – they multiplied rapidly and began eating the native vegetation and digging holes, which caused soil erosion.
Language points: Important sentences
Paraphrase: Rabbits were free on the island and they did what rabbits do best – they increased their numbers rapidly and began eating the local plants, flowers, etc and digging holes, which caused soil erosion.
Language points: Important sentences
1）We reached the top of the mountain. We were tired and hungry.
形容词（短语）作状语的用法：其逻辑主语为句子的主语，是由主语相同的两个句子改写而成的。
= We reached the top of the mountain, tired and hungry.
我们到达山顶。感觉又累又饿。
= Satisfied with it, Jane bought the book immediately.
Jane对这本书很满意，立刻就买了下来。
2）Jane was satisfied with it. She bought the book immediately.
4. This in turn led to more cats hunting the birds.
Language points: Important sentences
Paraphrase: As a result, this led to more cats hunting the birds.
in turn 依次；轮流。还可以表示结果，相当于as a result，和下文中的 in consequence 同义。
例：1）The grape production declined greatly this year
which in turn brought a rise in its price.
今年的葡萄产量大幅度下降，因此价格上涨了。
2）He was over the age limit and in consequence, his
application was rejected.
他已超过了年龄限制，因此他的申请被拒绝了。
5.This intervention is a long, much-delayed ending to a sad story, but we humans owe it to the island to give it a happy ending.
Language points: Important sentences
Paraphrase: This intervention is an ending to a sad story which takes a long time and is delayed much, but it’s our responsibility to give the island a happy ending.
Language points: Important sentences
owe it to sb to do sth 应该为某人做某事
例：1）We owe it to the heroes to build a memorial.
我们应该为这些英雄建一座纪念碑。
2）We owe it to our children to clean up the
environment.
我们应该为孩子们治理环境。